首页> 外文期刊>Geodinamica Acta >U/Th dating of fissure ridge travertines from the Kirsehir region (Central Anatolia Turkey): structural relations and implications for the Neotectonic development of the Anatolian block
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U/Th dating of fissure ridge travertines from the Kirsehir region (Central Anatolia Turkey): structural relations and implications for the Neotectonic development of the Anatolian block

机译:克谢希尔地区(土耳其中部安那托利亚)裂脊钙华的U / Th年代:安那托利亚地块新构造发育的结构关系和意义

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Travertines exposed in several locations in Central Anatolia are the important lithological product for the interpretation of local neotectonics. The fissure-type travertines provide significant information about stress orientation during, deposition. Two travertine masses cropping Out in the Kirsehir region have been studied and dated by the U-series method to obtain new chronological constraints, determine dilation rates and contribute to Studies on the recent tectonic evolution of the area. The Kusdili and Kayabasi travertine masses are located on the hanging wall of the Kirsehir Fault, similar to numerous fissure ridge handed travertine deposits which are inactive today in the region. While individual fissures of the Kusdili travertine mass (Late Pleistocene-Holocene) have been dilated at rates of between 0.303 and 0.386 mm yr(-1) during deposition. the Kayabasi travertine mass (Late Pleistocene) produced measured dilation rates of between 0.136 and 0.187 mm yr(-1). The central fissures, filled by handed travertine, roughly follow the ridge crests. While the ridge crest has a NNE-SSW trend in the Kayabasi travertine mass, the ridge crest of the Kusdili travertine mass shows a NE-SW trend. This difference may be related to (lie clockwise rotation of the stress tensors from Late Pleistocene to Late Pleistocene-Holocene in the region.
机译:在安纳托利亚中部几个地方暴露的钙华是解释当地新构造论的重要岩性产物。裂缝型的钙华提供了有关沉积过程中应力取向的重要信息。已通过U系列方法研究并确定了在Kirsehir地区出现的两个石灰华块的年代,从而获得了新的年代学约束,确定了扩张速率,并为该地区最近的构造演化研究做出了贡献。 Kusdili和Kayabasi石灰华块体位于Kirsehir断层的悬挂壁上,类似于该地区今天不活跃的众多裂隙山脊上的钙华沉积物。虽然在沉积过程中,Kusdili石灰华块的个别裂缝(晚更新世-全新世)已以0.303至0.386 mm yr(-1)的速率扩张。 Kayabasi石灰华块(晚更新世)测得的扩张速率在0.136至0.187 mm yr(-1)之间。中央的裂缝由石灰华填充,大致沿着脊脊。脊峰在卡亚巴斯石灰华块体中具有NNE-SSW趋势,而库斯迪利石灰华块体的脊峰具有NE-SW趋势。该差异可能与该区域中的应力张量从晚更新世到晚更新世-全新世顺时针旋转有关。

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